Features Effortless Bit Change: Replace drill bits quickly and easily without any external tools, ensuring a smooth workflow and saving you valuable time during projects Simple Operation: The three jaws chuck opens and closes with a simple head reverse, providing a user-friendly experience that enhances productivity and convenience Precision Engineering: Crafted from high-quality steel and accurately machined, this chuck ensures optimal performance and durability for all your drilling tasks Impact Resistant Design: Built to withstand heavy use, this chuck offers long-lasting performance and stability, making it ideal for extended work sessions One-Handed Locking Mechanism: Effortlessly clamp and lock with one hand using the quick connect feature, ensuring secure bit placement without the need for a key Features: 1、Drill bits can be replaced without any external tools, and the installation is convenient. 2、Three jaws chuck is opened and closed by a simple reverse of the head, and the is simple. 3、Easy to use, accuracy machined to ensure accuracy, made of the highest quality steel, heat treated to obtain excellent strength. 4、Impact resistant, , long service life, suitable for long time work, stable performance. 5、Can be easily clamped and locked by one？handed , quick connect without key, radial locking. Specification: Item Type: Drill Chuck Material: Alloy Steel Clamp Size Range: Approx. 2-1m Thread Diameter: Approx. 1m / 0.5in Package List: 1 x Drill Chuck Note: When using the chuck, please tighten and fix it Package List 1 x Drill Chuck